A shrieker was a variant of the violet fungus known for the strange and loud noises it emitted to attract prey.[3]


Shriekers were human-sized mushrooms. They were similar in appearance to violet fungi, but they lacked the ability to move and did not have tentacles with which to poison prey. They could produce a loud, piercing, screaming sound that tended to attract curious creature (or adventurers) to the area.[3]

They were immune to the poison of violet fungi.[3]


Shriekers thrived in dark underground environments.[3] Besides being found in large numbers in the Underdark, shriekers also grew on the illithid homeworld.[6] The Flooded Forest was a dark enough environment for shriekers to grow there as well.[7]


Shriekers could sense nearby motion or light and would respond with their namesake shriek. Each such screaming sound lasted between five and fifteen seconds. A patch of shriekers relied on violet fungi to kill prey with their poison, since a shrieker could not attack or move on its own. Like violet fungi, shriekers gained their nourishment from the breakdown of organic matter that had fallen nearby.[3]


In the Underdark, shriekers were sometimes placed intentionally to act as intruder alarms. House DeVir planted a shrieker among every fifth mushroom surrounding its compound to ward off potential attackers.[8]

Shriekers were poisonous to most creatures as food; however, the stomachs of hook horrors had adapted to digest them without issue.[9] They were also known to be eaten by purple worms and shambling mounds.[10]

Some considered their spores to be a vital ingredient in brewing a potion of plant control.[10]



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  1. 1.0 1.1 Wizards RPG Team (2014). Monster Manual 5th edition. (Wizards of the Coast), pp. 137–138. ISBN 978-0786965614.
  2. Teos Abadia (April 2012). “The Ecology of the Vegepygmy”. In Steve Winter ed. Dungeon #201 (Wizards of the Coast), p. 6.
  3. 3.0 3.1 3.2 3.3 3.4 3.5 Skip Williams, Jonathan Tweet, Monte Cook (July 2003). Monster Manual 3.5. (Wizards of the Coast), pp. 112–113. ISBN 0-7869-2893-X.
  4. Doug Stewart (June 1993). Monstrous Manual. (TSR, Inc), p. 120. ISBN 1-5607-6619-0.
  5. Gary Gygax (December 1977). Monster Manual, 1st edition. (TSR, Inc), p. 87. ISBN 0-9356-9600-8.
  6. Stephen Inniss (October 1989). “The Dragon's Bestiary: All life crawls where mind flayers rule”. In Roger E. Moore ed. Dragon #150 (TSR, Inc.), p. 12.
  7. Ed Greenwood, Sean K. Reynolds, Skip Williams, Rob Heinsoo (June 2001). Forgotten Realms Campaign Setting 3rd edition. (Wizards of the Coast), p. 297. ISBN 0-7869-1836-5.
  8. R.A. Salvatore (September 1990). Homeland. (TSR, Inc.), p. 12. ISBN 0-1401-4372-6.
  9. Michael Persinger (March 1988). “The Ecology of the Hook Horror”. In Roger E. Moore ed. Dragon #131 (TSR, Inc.), pp. 42–46.
  10. 10.0 10.1 Doug Stewart (June 1993). Monstrous Manual. (TSR, Inc), p. 121. ISBN 1-5607-6619-0.
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